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From: Anshuman Khandual <anshuman.khandual@arm.com>
To: linux-arm-kernel@lists.infradead.org, coresight@lists.linaro.org
Cc: linux-kernel@vger.kernel.org,
	Anshuman Khandual <anshuman.khandual@arm.com>,
	Mathieu Poirier <mathieu.poirier@linaro.org>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Mike Leach <mike.leach@linaro.org>,
	Linu Cherian <lcherian@marvell.com>,
	devicetree@vger.kernel.org
Subject: [PATCH 11/11] dts: bindings: Document device tree binding for Arm TRBE
Date: Wed, 23 Dec 2020 15:33:43 +0530	[thread overview]
Message-ID: <1608717823-18387-12-git-send-email-anshuman.khandual@arm.com> (raw)
In-Reply-To: <1608717823-18387-1-git-send-email-anshuman.khandual@arm.com>

This patch documents the device tree binding in use for Arm TRBE.

Cc: devicetree@vger.kernel.org
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
Changes in V1:

- TRBE DT entry has been renamed as 'arm, trace-buffer-extension'

 Documentation/devicetree/bindings/arm/trbe.txt | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/trbe.txt

diff --git a/Documentation/devicetree/bindings/arm/trbe.txt b/Documentation/devicetree/bindings/arm/trbe.txt
new file mode 100644
index 0000000..001945d
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/trbe.txt
@@ -0,0 +1,20 @@
+* Trace Buffer Extension (TRBE)
+
+Trace Buffer Extension (TRBE) is used for collecting trace data generated
+from a corresponding trace unit (ETE) using an in memory trace buffer.
+
+** TRBE Required properties:
+
+- compatible : should be one of:
+	       "arm,trace-buffer-extension"
+
+- interrupts : Exactly 1 PPI must be listed. For heterogeneous systems where
+	       TRBE is only supported on a subset of the CPUs, please consult
+	       the arm,gic-v3 binding for details on describing a PPI partition.
+
+** Example:
+
+trbe {
+	compatible = "arm,trace-buffer-extension";
+	interrupts = <GIC_PPI 15 IRQ_TYPE_LEVEL_HIGH>;
+};
-- 
2.7.4


WARNING: multiple messages have this Message-ID (diff)
From: Anshuman Khandual <anshuman.khandual@arm.com>
To: linux-arm-kernel@lists.infradead.org, coresight@lists.linaro.org
Cc: devicetree@vger.kernel.org,
	Mathieu Poirier <mathieu.poirier@linaro.org>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Anshuman Khandual <anshuman.khandual@arm.com>,
	linux-kernel@vger.kernel.org, Linu Cherian <lcherian@marvell.com>,
	Mike Leach <mike.leach@linaro.org>
Subject: [PATCH 11/11] dts: bindings: Document device tree binding for Arm TRBE
Date: Wed, 23 Dec 2020 15:33:43 +0530	[thread overview]
Message-ID: <1608717823-18387-12-git-send-email-anshuman.khandual@arm.com> (raw)
In-Reply-To: <1608717823-18387-1-git-send-email-anshuman.khandual@arm.com>

This patch documents the device tree binding in use for Arm TRBE.

Cc: devicetree@vger.kernel.org
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
Changes in V1:

- TRBE DT entry has been renamed as 'arm, trace-buffer-extension'

 Documentation/devicetree/bindings/arm/trbe.txt | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/trbe.txt

diff --git a/Documentation/devicetree/bindings/arm/trbe.txt b/Documentation/devicetree/bindings/arm/trbe.txt
new file mode 100644
index 0000000..001945d
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/trbe.txt
@@ -0,0 +1,20 @@
+* Trace Buffer Extension (TRBE)
+
+Trace Buffer Extension (TRBE) is used for collecting trace data generated
+from a corresponding trace unit (ETE) using an in memory trace buffer.
+
+** TRBE Required properties:
+
+- compatible : should be one of:
+	       "arm,trace-buffer-extension"
+
+- interrupts : Exactly 1 PPI must be listed. For heterogeneous systems where
+	       TRBE is only supported on a subset of the CPUs, please consult
+	       the arm,gic-v3 binding for details on describing a PPI partition.
+
+** Example:
+
+trbe {
+	compatible = "arm,trace-buffer-extension";
+	interrupts = <GIC_PPI 15 IRQ_TYPE_LEVEL_HIGH>;
+};
-- 
2.7.4


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  parent reply	other threads:[~2020-12-23 10:05 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-23 10:03 [PATCH 00/11] arm64: coresight: Enable ETE and TRBE Anshuman Khandual
2020-12-23 10:03 ` Anshuman Khandual
2020-12-23 10:03 ` [PATCH 01/11] coresight: etm-perf: Allow an event to use different sinks Anshuman Khandual
2020-12-23 10:03   ` Anshuman Khandual
2020-12-23 10:03 ` [PATCH 02/11] coresight: Do not scan for graph if none is present Anshuman Khandual
2020-12-23 10:03   ` Anshuman Khandual
2020-12-23 10:03 ` [PATCH 03/11] coresight: etm4x: Add support for PE OS lock Anshuman Khandual
2020-12-23 10:03   ` Anshuman Khandual
2020-12-23 10:03 ` [PATCH 04/11] coresight: ete: Add support for ETE sysreg access Anshuman Khandual
2020-12-23 10:03   ` Anshuman Khandual
2020-12-23 10:03 ` [PATCH 05/11] coresight: ete: Add support for ETE tracing Anshuman Khandual
2020-12-23 10:03   ` Anshuman Khandual
2020-12-23 10:03 ` [PATCH 06/11] dts: bindings: Document device tree bindings for ETE Anshuman Khandual
2020-12-23 10:03   ` Anshuman Khandual
2021-01-03 17:02   ` Rob Herring
2021-01-03 17:02     ` Rob Herring
2021-01-04 14:42     ` Suzuki K Poulose
2021-01-04 14:42       ` Suzuki K Poulose
2021-01-04 18:15       ` Mathieu Poirier
2021-01-04 18:15         ` Mathieu Poirier
2021-01-04 20:31         ` Rob Herring
2021-01-04 20:31           ` Rob Herring
2020-12-23 10:03 ` [PATCH 07/11] arm64: Add TRBE definitions Anshuman Khandual
2020-12-23 10:03   ` Anshuman Khandual
2020-12-23 10:03 ` [PATCH 08/11] coresight: core: Add support for dedicated percpu sinks Anshuman Khandual
2020-12-23 10:03   ` Anshuman Khandual
2020-12-23 10:03 ` [PATCH 09/11] coresight: etm-perf: Truncate the perf record if handle has no space Anshuman Khandual
2020-12-23 10:03   ` Anshuman Khandual
2020-12-23 10:03 ` [PATCH 10/11] coresight: sink: Add TRBE driver Anshuman Khandual
2020-12-23 10:03   ` Anshuman Khandual
2021-01-04 16:28   ` Suzuki K Poulose
2021-01-04 16:28     ` Suzuki K Poulose
2021-01-05  9:29     ` Anshuman Khandual
2021-01-05  9:29       ` Anshuman Khandual
2021-01-05 11:37       ` Suzuki K Poulose
2021-01-05 11:37         ` Suzuki K Poulose
2021-01-06 11:50         ` Anshuman Khandual
2021-01-06 11:50           ` Anshuman Khandual
2021-01-07 14:01           ` Suzuki K Poulose
2021-01-07 14:01             ` Suzuki K Poulose
2020-12-23 10:03 ` Anshuman Khandual [this message]
2020-12-23 10:03   ` [PATCH 11/11] dts: bindings: Document device tree binding for Arm TRBE Anshuman Khandual
2021-01-03 17:05   ` Rob Herring
2021-01-03 17:05     ` Rob Herring
2021-01-04  3:44     ` Anshuman Khandual
2021-01-04  3:44       ` Anshuman Khandual
2021-01-07 14:05       ` Suzuki K Poulose
2021-01-07 14:05         ` Suzuki K Poulose

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